Distilling apparatus.



F. A. GRAHAM.

DISTILLING APPARATUS.

APPLICATION FILED SEPT. 14. 191B.

Patented Apr. 29, 1919.

INVENTOI? FA. GRAHAM A NORA/E78 UNITED STATES PATENT oEEIoE.

" nun Am emu, or HARBOR SPRINGS, MICHIGAN.

\ msmme ArrAmTUs.

To all whom it may concern:

Be it known that I, FRANK A. GRAHAM, a citizen of the United States, and a resident of Harbor Springs, in the county of Emmet and State of Michigan, have invented a new and Im roved Distillingl'lfipparatus, of

which the ollowing is a exact description. V

Among the principal objects which the present invention has in view are: to profvide means which may be incorporated in the structure of small seagoing boats or rafts for distilling salt water; to provide alternate hand and power means for operating the apparatus; and to provide neutral or automatic assistance in the operation of'evapoclear, and

. rating the water.

Drawings.

Figure 1 is a plan view of an apparatus such as described constructed and arranged in accordance with the present invention; Fig. 2 is a vertical section of the same, the

section being taken as on the line 22 in.

Fig. 1.

Description. As seen in the drawings, a tank 7 is provided for holding a supply of salt water 8. A glass cover 9 may be removed when resupplying water to the tank 7. The cover 9 may be a lens for concentrating the heatrays of the sun 'to assist in heating the water 8 in the tank 7. The rays of the sun are further collected or concentrated upon the cover 9 and the water 8 thereunder by inclined focusing glass sides 10.

The water 8 is primarily heated by an electric heatin coil 11, which is disposed in the tank 7, t e wires 12 and 13 passing through the sides of the said tank to the terminals of a dynamo 14, which supplies the heating current. I

As the water 8 is eva orated, the vapors which the said tube is connected. Atmospheric pressure is maintained in the cooler by the outlet 20, formed in the side of, the

cooler adjacent the top thereof. The aper- Specification of Letters Patent.

is dis ture of the tube 18 and the passage of the outlet 20 are approximately equal in diameter and capacity. The air held under compression within'the-chamber 19 is delivered thereto through the check valve 21 in the pipe 22. The pipe 22 is in open communication with the compression cylinder 23. The compresion chamber 23, as shown best in Fig. 2 of thezdrawings, extends within the chamber of the tank 7 and opens outwardly therefrom through the side wall thereof. A piston 24 is reciprocated in the cylinder 23 and has intake passages 25 bored therethrough and trapped by a flat flexible yielding flap 26. The piston stem 27 is supported in a guide bearing 28- in the center of. a spider casting 29. The piston is rapidly reciprocated by means of the crank 30 on the shaft 31. A connecting rod 32 operatively unites the crank 30 and the stem 27. The shaft 31 is driven manually, employing: for that purpose, a crank handle 33. By thesame effort, the dynamo 41 is operated, power being delivered to the rotor thereof by a pulley 34 on the shaft. An auxiliary pressure is employed to assist in vaporizing the water 8. The compressor employs the cylinder 35, having the piston 36 and stem 37 connecting the rod 38 and crank 39. The outlet of the cylinder 35 em loys an expansion chamber 40 from whic an aspirating tube section 41- extends, as seen best in Fig. 2 of the drawings. A suitable, check valve between the cylinder .35 and the cham r 40 to prevent the back flow of air from said chamber when the piston 36 is retracted. A spray tube '42 having a contracted mouth adjacent the ends of the tube section 41, extends to near thebottom of the "tank 7 to above the water supply therefor.

With the apparatus constructed and arranged as described, the operation is as follows: The tank 7 is roperly charged with water to be distille The attendant ro- Patented Apr. 29, 1919. Application fled September 14, 1918. Serial No. 254,073.

tates the shaft 31, engaging for that purpose the handle 33. The shaft 31, by means of the cranks 30 and 39 thereof, reciprocates the pistons 24 and 36. By means of the transmissionfrom the pulley 34 by the belt 43 and pulley 45, the rotor of the dynamo l4 isdriven and furnishes currentto the electric heater 11., The continuation of the operation provides for heating the water 8 in the tank 7.

During the operation of the piston 24, the valveflap 26 hits with each retraction of said piston, to admit air to the forward part of the cylinder 23, and closes to trap said air when the piston is moved on the power stroke thereof. The compression of the air has the efiect of generating heat which is radiated through the body of the liquid, thereby assisting in the vaporization of said liquid. The trapped air is transferred through the pipe 22 and the valve 21 to the chamber 19. The operation of the piston 24 is sufliciently rapid to hold air in the chamber 19 under compression. Heat generated by the compression has radiated to the surrounding atmosphere, the walls of the chamber 19 being thin and, if necessary, provided with radiating fins or other wellknown devices. I

From the chamber 19, the air is deliv ered by means of the tube 18 and a contracted jet opening thereof to the cooler 17.

When the air passes from the tube 17, it has been reduced in temperature to correspond with the surrounding atmosphere. When this air .is delivered to the cooler 17 and upon the-coil 16 therein, itimmediately expands and in doing so absorbs the heat of the air and various members including the coil 16 within the said cooler until the temperatures become equalized. This process continues until the temperature inside the cooler 17 and of the coil 16 is considerably below the temperature of the surrounding atmosphere. It will be remembered that as the temperature in the cooler is reduced, the disproportion between the temperature within the cooler and that of the air delivered from the tube 18, is increased with the concomitant that the temperature of the air is relatively lowered.

During the periods when the heat rays of the sun may be utilized, the cover 9 and sides 10 contribute their influence to heat the water 8, until vapors rise from the said water. This vapor is the lighter elements of the water separated from the heavier or mineral portions of the water.

As the vapor from the upper part of the tank 7 passes through the pipe' 15 and coil 16, a current or movement of the vapor is created by a slight suction incident to the condensation in the coil 16. The vapor as condensed flows downward in the coil 16 and is disposed in the bottom of the cooler 17 to be ultimately decanted therefrom by means of the faucet 46.

The distilling operation is assisted by the spraying of the water resulting as the cooperation of the spray tube 42 and the aspirating tube 41. As the current of air delivered from the cylinder 35 passes across the aperture of the spray tube 42, the water is comminuted or broken into thin particles which are suspended in the upper part of the chamber. In the form of spray thus produced. the physical separation of the water and the mineral carried thereby is fa.- cilitated, the heavier particles passing to the supply while the lighter vapors are carried over by means of the pipe 15 to the coil 16.

While I have herein shown a hand operated mechanism for operating the pistons 24 and 36 and dynamo 14, it will be understood that such mechanism may be substituted for power driven appliances of suitable and well-known frames.

Claims.

1. A distilling apparatus comprising a liquid-holding tank; an air compressor disposed within said tank to be immersed within the liquid therein; a reservoir operatively connected with said compressor for holding air delivered thereby under compression; a cooling chamber operatively connected with said compressor by means of a jet tube; means for vaporizing water in said tank; and a cooling system for said vapor, embodying a delivery pipe, and a cooling coil section thereof, said section being disposed in said cooling chamber.

2. A distilling apparatus comprising a liquid-holding tank; an air compressor disposed within said tank to be immersed within the liquid therein; a reservoir operatively connected with said compressor for holding air delivered thereby under compression; a cooling chamber operatively connected with said compressor by means of a jet tube; means for vaporizing water in said tank; a ooling system for said vapor, embodying a delivery pipe, and a cooling coil section thereof, said section being disposed in said cooling chamber; and means for assisting the vaporization embodying an atomizing apparatus.

3. A distilling apparatus comprising a liquid-holding tank; an air compressor disposed within said tank to be immersed within the liquid therein; a reservoir operatively connected with said compressor for holding air delivered thereby under compression; a cooling chamber (merativcly connected with said compressor by means of a jet tube; means for vaporizing water in said tank; a cooling system for said vapor, embodying a delivery pipe, and a cooling coil section thereof, said section being disposed in said cooling chamber; and means for assisting the vaporization embodying an atomizing apparatus, said atomizing apparatus embodying a spray nozzle, an aspirating tube, and an auxiliary air compressing mechanism connected with said aspirating tube, said aspirating tube and spray nozzle being disposed above the liquid level of said tank.

FRANK ARCHIE GRAHAM. 

